January through June (Maximum count totals = 31,220)
|
|
Maximum Count
|
Latitude (°N)
|
Longitude (°W)
|
Location
|
|
1800
|
33.50
|
94.00
|
Highway 108, Miller County, Arkansas
|
|
1656
|
29.90
|
93.20
|
Rice fields, Cameron County, Louisiana
|
|
1500
|
53.30
|
114.00
|
Spruce Grove, west of Edmonton, Alberta
|
|
1148
|
36.00
|
95.70
|
Coweta sod farms, Wagoner County, Oklahoma
|
|
1000
|
35.10
|
91.50
|
Georgetown, White County, Arkansas
|
|
1000
|
27.80
|
97.40
|
Corpus Christi, Texas
|
|
900
|
36.00
|
95.60
|
Wagoner County, Oklahoma
|
|
900
|
28.90
|
96.00
|
Rice field, Matagorda County, Texas
|
|
786
|
42.10
|
93.10
|
North of Clemons, Marshall County, Iowa
|
|
700
|
35.60
|
95.30
|
Muskogee County, Oklahoma
|
|
600
|
29.30
|
89.90
|
Terril, Dickinson County, Iowa
|
|
600
|
30.00
|
93.10
|
Cameron Parish, Louisiana
|
|
600
|
43.30
|
95.00
|
Grand Terre, Jefferson Parish, Louisiana
|
|
550
|
28.50
|
96.60
|
Magnolia Beach, Indianola Island, Calhoun County, Texas
|
|
526
|
53.30
|
112.50
|
Beaverhill Lake, Alberta
|
|
500
|
41.80
|
91.50
|
Coralville Reservoir, Johnson County, Iowa
|
|
500
|
50.80
|
104.90
|
Valeport Marsh, Saskatchewan
|
|
500
|
46.10
|
96.10
|
Orwell Wildlife Management Area, Minnesota
|
|
438
|
33.60
|
94.00
|
Five miles east of Ogden, Little River County, Arkansas
|
|
422
|
51.90
|
104.10
|
Quill Lakes, Saskatchewan
|
|
400
|
46.30
|
96.50
|
Breckenridge sewage lagoons, Minnesota
|
|
400
|
42.00
|
94.40
|
Southwestern Greene County, Iowa
|
|
392
|
30.20
|
92.30
|
Between Duson and Crowley, Louisiana
|
|
300
|
46.00
|
97.40
|
Tewaukon National Wildlife Refuge, North Dakota
|
|
300
|
27.20
|
98.10
|
Falfurrias, Texas
|
|
300
|
44.00
|
95.90
|
Murray County, Minnesota
|
|
297
|
36.20
|
95.90
|
Mohawk Park, Tulsa, Oklahoma
|
top of page
July through December (Maximum count totals = 14,763)
|
|
Maximum Count
|
Latitude (°N)
|
Longitude (°W)
|
Location
|
|
4000
|
46.90
|
96.80
|
North Dakota State University, Fargo, North Dakota
|
|
1500
|
46.90
|
97.20
|
Casselton, North Dakota
|
|
1225
|
49.40
|
98.00
|
Jordan, Manitoba
|
|
900
|
48.00
|
97.10
|
Grand Forks Lagoons area, North Dakota
|
|
542
|
38.30
|
98.80
|
Cheyenne Bottoms Wildlife Management Area, Kansas
|
|
500
|
46.10
|
96.10
|
Orwell Wildlife Management Area, Minnesota
|
|
492
|
41.80
|
93.70
|
Saylorville Reservoir, Polk County, Iowa
|
|
400
|
48.40
|
97.70
|
Walsh County, North Dakota
|
|
400
|
49.90
|
97.10
|
Winnipeg, Manitoba
|
|
312
|
52.30
|
102.70
|
Buck Lake, Saskatchewan
|
|
300
|
46.30
|
96.50
|
Breckenridge sewage lagoons, Minnesota
|
|
260
|
48.00
|
97.30
|
Kellys Slough National Wildlife Refuge, North Dakota
|
|
220
|
41.70
|
94.30
|
Bays Branch, Guthrie Center, Iowa
|
|
200
|
43.70
|
96.20
|
Blue Mounds, Rock County, Minnesota
|
|
188
|
41.70
|
93.60
|
Moeckley Prairie, Polk County, Iowa
|
|
160
|
44.80
|
96.60
|
Rush Lake, Deuel County, South Dakota
|
|
150
|
36.70
|
98.20
|
Salt Plains National Wildlife Refuge, Oklahoma
|
|
150
|
47.80
|
96.60
|
Polk County, Minnesota
|
|
106
|
51.10
|
107.10
|
Luck Lake, Saskatchewan
|
|
105
|
41.60
|
90.60
|
Davenport, Scott County, Iowa
|
|
103
|
48.30
|
100.80
|
McHenry County, North Dakota
|
|
100
|
48.20
|
101.20
|
Sewage lagoons, Minot, North Dakota
|
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